Part 21 issues found by three companies

摘要

Curtiss-Wright Flow Control Company notified the Nuclear Regulatory Commission on January 4 that all testing and repairs have been completed on a type of assembly used in TopWorx C7 and SV7 switches. In keeping with 10 CFR Part 21 of NRC regulations, the company reported last April that QualTech NP Top Potted Generation 3 quick-disconnect connector pin side assemblies were found not to fulfill submergence qualifications. Since then, all of the affected assemblies have been returned (from power reactors in China, and also from Entergy's Pilgrim boiling water reactor in Massachusetts, where they had not been put to use). All of them have now been modified, and, according to Curtiss-Wright, "We have experienced 100 percent success when repair was needed."